lib/Target/PIC16/PIC16TargetMachine.cpp

   1 //===-- PIC16TargetMachine.cpp - Define TargetMachine for PIC16 -----------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // Top-level implementation for the PIC16 target.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "PIC16.h"
  15 #include "PIC16TargetAsmInfo.h"
  16 #include "PIC16TargetMachine.h"
  17 #include "llvm/Module.h"
  18 #include "llvm/PassManager.h"
  19 #include "llvm/CodeGen/Passes.h"
  20 #include "llvm/Target/TargetAsmInfo.h"
  21 #include "llvm/Target/TargetMachineRegistry.h"
  22
  23 using namespace llvm;
  24
  25 /// PIC16TargetMachineModule - Note that this is used on hosts that
  26 /// cannot link in a library unless there are references into the
  27 /// library.  In particular, it seems that it is not possible to get
  28 /// things to work on Win32 without this.  Though it is unused, do not
  29 /// remove it.
  30 extern "C" int PIC16TargetMachineModule;
  31 int PIC16TargetMachineModule = 0;
  32
  33
  34 // Register the targets
  35 extern Target ThePIC16Target;
  36 static RegisterTarget<PIC16TargetMachine>
  37 X(ThePIC16Target, "pic16", "PIC16 14-bit [experimental].");
  38
  39 extern Target TheCooperTarget;
  40 static RegisterTarget<CooperTargetMachine>
  41 Y(TheCooperTarget, "cooper", "PIC16 Cooper [experimental].");
  42
  43 // Force static initialization.
  44 extern "C" void LLVMInitializePIC16Target() {
  45   TargetRegistry::RegisterAsmPrinter(ThePIC16Target,
  46                                      &createPIC16CodePrinterPass);
  47   TargetRegistry::RegisterAsmPrinter(TheCooperTarget,
  48                                      &createPIC16CodePrinterPass);
  49 }
  50
  51 // PIC16TargetMachine - Traditional PIC16 Machine.
  52 PIC16TargetMachine::PIC16TargetMachine(const Target &T, const Module &M,
  53                                        const std::string &FS, bool Cooper)
  54 : LLVMTargetMachine(T),
  55   Subtarget(M, FS, Cooper),
  56   DataLayout("e-p:16:8:8-i8:8:8-i16:8:8-i32:8:8"),
  57   InstrInfo(*this), TLInfo(*this),
  58   FrameInfo(TargetFrameInfo::StackGrowsUp, 8, 0) { }
  59
  60 // CooperTargetMachine - Uses the same PIC16TargetMachine, but makes IsCooper
  61 // as true.
  62 CooperTargetMachine::CooperTargetMachine(const Target &T, const Module &M,
  63                                          const std::string &FS)
  64   : PIC16TargetMachine(T, M, FS, true) {}
  65
  66
  67 const TargetAsmInfo *PIC16TargetMachine::createTargetAsmInfo() const {
  68   return new PIC16TargetAsmInfo(*this);
  69 }
  70
  71 bool PIC16TargetMachine::addInstSelector(PassManagerBase &PM,
  72                                          CodeGenOpt::Level OptLevel) {
  73   // Install an instruction selector.
  74   PM.add(createPIC16ISelDag(*this));
  75   return false;
  76 }
  77
  78 bool PIC16TargetMachine::addPostRegAlloc(PassManagerBase &PM,
  79                                          CodeGenOpt::Level OptLevel) {
  80   PM.add(createPIC16MemSelOptimizerPass());
  81   return true;  // -print-machineinstr should print after this.
  82 }
  83
  84